Double disk for grain-drills.



PATENTED SEPT. 26, 1905.

R. H. SGHLAGHTERL DOUBLE DISK FOR GRAIN DRILLS.

APPLICATION IILBD MAY 17. 1904.

W; TNESSES:

A #0 may UNITE STATE PATENT @FFTUE.

DOUBLE DISK FOR GRAIN-DRELLS.

Specification of Letters Patent.

Patented. Sept. 26, 1905.

Application file l May 17, 1904. Serial No. 208,482.

To (l/ZZ whont it may concern:

Beit known that 1, Ron ERT H. SCHLAOHTER, a citizen of the United States, residing at Council Bluffs, in the county of Pottawattamic and State of Iowa, have invented new and useful Improvements in Double Disks for Grain-Drills, of which the following is aspecification.

My invention relates to improvements in hubs and bearings for disks for grain-drills, and the objects of my invention are, first, to devise a means to properly rotate two disks touching at their edges at a suitable point to cleave the soil; second, to provide hubs for such disks that will adjust automatically for a reasonable amount of wear; third,-to provide hubs having dust-proof bearings; fourth, to provide such hubs which will not gather and hold soil and refuse; fifth, to provide a cheap, simple, and eflicient connection or universal joint between such hubs, carrying said disks, allowing the disks to be easily removed or disconnected. I attain these objects by a construction and device illustrated in the accompanying drawings, in which Figure l is a side elevation of the standard and hub with one disk removed. Fig. 2 is a vertical sectional view through the center of the hub of said standard and disks. Fig. 3 is a plan of said standard and disks. Fig. i is a side elevation of one of the said disks. Fig. 5 is a cross-section through the center of one of such disks; and Fig. 6 is a plan of the bolts t Z), having swivel-joint.

In the several views similar letters refer to similar parts throughout.

Upon the standard 8, of any suitable shape or form for attachment, (a grain-drill and which forms no part of this invention, a sleeve jis properly supported and internally tapered at its outer ends to form bearings for axles of hubs Z1 and Zr, extending therein, which internal bearings in said sleeves are at an angle with each other, so that the two disks (Z and (Z touch at some definitely-arranged point of contact, as Upon the disks (Z and (Z (which said disks may be made exactly alike) are secured hubs it it, rounded or hemispherical on the outside and having an annular groove on the inside to receive the projecting end of the sleeve j at the proper depth. These hubs l2, and it are tapered to form an axle which fits into and revolves in the sleeve j. The said hubs 7b and it have each an axial hole through which pass the bolts?) and. 5, respectively. The said hubs Z1. and it may be counsaid bolts 6 and b tersunk on the outer or hemispherical face thereof to receive the nuts of the respective bolts b and b, so that the extremities of the will be protected from 0bstacles striking the said hubs it and it. The bolt Z) passes through the hole is in the hub Zr and is connected by any suitable universal joint, (here shown, and preferably so used, as an eyelet receiving a corresponding eyelet of another similar bolt .7),) or the said bolt Z) may be connected with the bolt 5 by a swiveljoint, as shown in Fig. 6, when it is desired that the disks rotate separately. The hubs it and Zr may be made exactly alike, and when placed with their axles within the sleeve 7' are held inplace by the connecting-bolts b and b, universally jointed, so that the two disks (Z and (Z, supported on the respective hubs h and it, will touch at the periphery of the said disks (Z (Z at a point p. The axles of the said hubs ]b and it are made to fit the internal tapers of the respective ends of the sleeve 1' when the said disks (Z and (Z touch at the point p, as aforesaid. The bolts 6 and b have burs at their extremities by which the hubs h and it, to which are fastened the disks (Z and (Z, may be removed from the sleeve j by removing one of the burs on the connections Z) and Z. When it is desired that said disks do not rotate independently and bolt connections are used, the hubs Zr and it may be slotted through the eyelet 7c at c' to receive and to hold the eyelet of the bolts 6 b and prevent their rotation within the hub. The hub 7a of the disk (Z may be formed as a part of the disk (Z or riveted or bolted thereto by rivets or bolts at 0'. Since the disk (Z, the hub 7i, and the bolt 6 are exactly similar to the disk (Z and the hub It and the bolt Z), a description of one part applies completely to the other. The bolts Z Z) can thus be arranged to revolve with their respective disks (Z and (Z. \Vhen the disks attached to the standard 8 are drawn through the soil,the surface of which comes to the points 9, a furrow or parting of the soil will be caused, whereby the grain can be dropped back of the hubs it and h and between the disks (Z and (Z, as in other similar disk-drills. The disks (Z and (Z, fastened to their hubs i2. and h, respectively, will revolve within and about the sleeve 1', always touching at the point p. The hubs Zr and /1., covering the ends of the sleeve 7, prevent dirt and sand from falling into the journals of the tapered axle on the said hubs it it, within the sleeve j. The said taper on the hubs IL it is IIO such that the ends of the sleeve 7' work against the bottom of the annular groove in said hubs h h when the disks (Z (Z touch at the point 7). As the parts wear together, the nuts upon the bolts 6 Z) may be screwed up for the proper adjustment. The outside of the hubs lb and h are made in a hemispherical or rounding shape, so that they do not gather and hold dirt and refuse.

I am aware that prior to my invention double disks have been used for grain-drills. I therefore do not claim the use of two disks for such purpose broadly; but

\(Vhat 1 do claim by my invention, and desire to secure by Letters Patent, is-

1. The combination in a sleeved standard having internally tapered bearings; disk- ROBERT H. SCHLACHTER.

Witnesses:

In. E. BAINBRIDGE, FRANK R. CHILDREN. 

